These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Also available in one-hole and two-hole versions. Each stopper has its size marked in raised figures. Sold as one-pound bags.
They can start with basic math operations and work their way up to more advanced concepts such as percents and square roots. This dual-powered, four-function calculator includes auto shut-off, 3-key memory and more. Measures 4 1/2" x 2 1/2" Grades Pre K +
They can start with basic math operations and work their way up to more advanced concepts such as percents and square roots. This dual-powered, four-function calculator includes auto shut-off, 3-key memory and more. Measures 4 1/2" x 2 1/2" Grades Pre K +
This fluorescent orange armband provides high visibility day or night, has sonic wedged edges, and is water resistant. Imprinted with "Crossing Guard" in black.
This fluorescent yellow armband provides high visibility day or night, has sonic wedged edges, and is water resistant. Imprinted with "Crossing Guard" in black.
Pulley is high-quality impact-resistant, chip-proof injection molded, balanced wheel. Smooth, clean V-groove. Wheel diameter 2", 360 degrees swivel hooks-top and bottom. All steel blocks.
Aluminum pulley 37mm diameter. mounted in thick strong metal frame for clamping to benches or boards.
Aluminum pulley 37mm diameter. mounted in thick strong metal frame for clamping to benches or boards.
Aluminum pulley 50mm diameter. Mounted in a bracket on a rod.
Aluminum pulley 50mm diameter. Mounted in a bracket on a rod.
Rugged plastic pulley with deep V groves mounted on a metal clamp. The sheave is 50mm in diameter. Clamp can be mounted on surfaces up to 25mm thick.
Rugged plastic pulley with deep V groves mounted on a metal clamp. The sheave is 50mm in diameter. Clamp can be mounted on surfaces up to 25mm thick.
• Closed Lenses, economy eye guard.
• Made of polycarbonate material.
• Lenses are side vented to prevent fogging.
• Lightweight and shatter resistant.
• Low cost.
Closed Lenses, economy eye guard. Made of polycarbonate material. Lenses are side vented to prevent fogging. Lightweight and shatter resistant. Low cost.
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 4" x 6" base
Stamped steel base. Black enamel finish. Zinc plated, detachable rod. 4" x 6" base
Surgical stainless steel, No. 22, will fit handle (11452).
Replacement bulb for microscopes with halogen illumination. 15W, 6V
Replacement bulb for microscopes with halogen illumination. 15W, 6V
• Comfortably covers the nose & mouth
• Protects from airborne pollution, dust, pollen, and other particles
• Measure 7" x 3 3/4" (approx.) when folded and expand to 7" by 6 3/4" (approx.)
• Around the head elastic for a snug comfortable fit
• Made from 100% cotton material
• Has an overlapping opening in the back to insert a filter (not included)
• Reusable and machine washable
• Available in white, and shades of pink, brown & blue (color may vary slightly)
• Made in USA
• One size fits most adults
These reusable, Cloth Face Masks comfortably cover the nose & mouth for protection from airborne pollution, dust, pollen, and other particles. The masks measure 7" x 3 3/4" (approx.) when folded and expand to 7" by 6 3/4" (approx.) They're made from 100% cotton material with an overlapping opening in the back to insert a filter (not included). Machine wash and air dry. Can be ironed (avoiding elastic). Available in white, and shades of pink, brown & blue (color may vary slightly). Has an around the head elastic to hold the mask snugly in place. These masks are made in USA. One size fits most adults.
NOTICE: These masks are considered an improvised form of personal protective equipment (PPE), and do not meet the standards of FDA cleared devices designed and tested for this purpose. They are not intended for treatment or prevention of illness, and by purchasing them the customer acknowledges and accepts this. Masks are not returnable, due to health and sanitary reasons.
Boiling flask with round bottom, borosilicate (heat resistant) glass, used in the laboratory for more prolonged boiling of liquids. Available in 4 sizes.
100 ml Flask uses a size 4 stopper
150 ml Flask uses a size 5 stopper
250 ml Flask uses a size 6.5 stopper
500 ml Flask uses a size 6.5 stopper
Stopper not included.
These sturdy Jars features a wide mouth and are ideal for storing powders and solid specimens. Cap features an insert for a tight, leak-proof closure. Material: HDPE.
Glass lens, metal rim with plastic handle.
Round magnifier with 50mm glass lens mounted on a metal frame with bakelite handle. 2.5x magnification.
Glass lens, metal rim with plastic handle.
Glass lens, metal rim with plastic handle.
Glass lens, metal rim with plastic handle.
Glass lens, metal rim with plastic handle.
Pure latex gum tubing. A clear amber color. Flexible, with long life under constant use. 3/32" wall thickness.
- ANSI Class R2 lime vest.
- 100% polyester mesh.
- Mic tabs on both shoulders
- Two exterior waist pockets with Velcro closure
- Two exterior chest pockets
- Two interior waist pockets
- Zipper closure
- Conforms to ANSI/ISEA 107 standard for design, color and reflectivity.
These belts offer superior visibility at a reasonable price. Made of strong nylon webbing with Velcro for size adjustment. Available in 4 colors and 4 sizes.
Small = Waist sizes 26" to 30"
Medium = Waist sizes 25" to 32"
Large = Waist sizes 30" to 36"
X-Large = Waist sizes 36" to 44"
2X/3X = Waist sizes 44" to 52"
4X/5X = Waist sizes 48" to 56"
• The traditional 5-panel cap
• 100% polyester front.
• Seamless foam front panel with lining.
• 8 row stitching on visor.
• Matching fabric undervisor, sweatband, and braid plastic adjustable snap.
• Orange or Yellow
• Available with or without Safety Patrol Emblem
This orange cap has a 100% polyester front. The traditional 5-panel cap has a seamless foam front panel with lining. 8 row stitching on visor. Matching fabric undervisor, sweatband, and braid plastic adjustable snap.
Celebrate Your Safety Patrol Heroes with these Safety Patrol Certificates. Crafted with care, these awards of excellence are ideal tokens of appreciation for young guardians. Personalize them with the recipient's name and date of recognition. Printed on high-quality paper, these certificates are enduring mementos that motivate and inspire. Perfect for graduations and special events, they make Safety Patrol members feel like true heroes. Order now to recognize their dedication to safety and responsibility. They can be handwritten or printed. Downloadable Microsoft Word template available. 30/pack. 8.5" x 11".